[_-----_]

I opted for Solr over ES due to the craziness of ES licensing, and other fiascos they have had over the years. Solr seems more "open" and in line with what I believe.

Sure, Solr is rough around the edges but it does virtually the same thing.

[denysvitali]

You can always use OpenSearch, which is equal to ES 7.x (since it was forked from there, before they went rough with the license)